Thermodynamic stability conditions, methane enrichment, and gas uptake of ionic clathrate hydrates of mine ventilation air

Chemical Engineering Journal(2015)

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摘要
•Hydrate-based CH4 removal from mine ventilation air was studied.•An isochoric pressure-search method was used to measure hydrate stability condition.•3-fold methane enrichment was obtained at a relatively low chemical dosage.
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关键词
Ventilation air methane,Ionic clathrate hydrate,Tri-n-butylphosphine oxide,Tetra-n-butyl ammonium bromide,Phase equilibrium
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